Australian Journal of Zoology
Number 2 2014
In this study, we have applied both molecular and morphological methods to resolve the long-recognised taxonomic problems in the Australian free-tailed bat genus Mormopterus. We distinguish nine species, three of which are new, and none conspecific with Indo-Papuan species. We also recognise three subgenera to account for Australian Mormopterus.
Photo by Bruce Thomson.
Species distributional patterns and relationships of freshwater amphipods (Chiltoniidae) from South Australia were analysed. Pleistocene regional climate changes are likely to have driven speciation in this group and the presence of four distinct species at Kangaroo Island indicates that it exists at a likely convergence of species distribution patterns.
Photo by Rachael King.
The morphology and histology of the uropygial gland in Antarctic bird species were studied. Some histological characteristics could be related to the amount of contact with the aquatic environment. Penguins have straight adenomers and absence of a primary storage chamber, whereas storm petrels have more tortuous adenomers and a small storage chamber.
Photo by Diego Montalti.
This paper presents the first detailed anatomical description of the caudal musculature in the western grey kangaroo, Macropus fuliginosus, revealing functional adaptations that reflect the role of the tail in both bipedal hopping and pentapedal locomotion in a large-bodied kangaroo.
Photo by Nick Milne.
We describe observations of juvenile trout minnow (Galaxias truttaceus) ‘climbing’ and ‘jumping’ over a vertical weir wall in south-western Australia. This observation enhances our knowledge of the migratory capability, and therefore long-term management, of this species and highlights the need for a better understanding of the swimming capabilities of freshwater fishes in general.
Photo by David Morgan.
Physalopterine nematodes are widespread in the gastrointestinal tract of many species of reptiles in Australia. At least 15 species of nematode are involved, and this paper examines factors which might limit interspecific competition between them; these include host-specificity, geographic distribution, climate, and feeding organ morphology.
Photo by Hugh Jones.